A former police officer gets dragged into a game of cat and mouse initiated by an intelligent killer to punish criminals outside the law.
Sam Wong Ming-SingDirector
Kwok Man Bun / Zero / Kwok Man Shing
May Chou
Wong Sir
Lee Wai Lam
Kevin
Ma Tong Tat
James
Lau Chi Wai
Chor Hei
Director of the Orphanage
Peter
Lawyer
Collin
Wang Zhe
Paw Yu Ming
May's Father
Siu Wan
May Chou's Mother
Nurse Chan
Undead Nurse
Kwok's Father
Kwok's Mother
Police Team A
Young Kevin
Bodyguard A
